37results about How to "Reinforcement is simple" patented technology

The invention belongs to the technical field of concrete reinforcement and relates to a method for reinforcing concrete with a fibrage net and a cement-based material. The method is to pour the fibrage net the total thickness of which is between 10 and 20 millimeters and fine concrete on the outer surface of a structure, and is characterized by comprising the following steps that: drilling holes on the surface of the structure in the process of construction; using the short end foot of a U-shaped shear resistant pin of which the two end feet have different lengths to hook the fibrage net, and inserting the long end foot thereof into the hole after a building structural adhesive is smeared on the long end foot; spraying the fine concrete after the adhesive is solidified; using the short end foot of a U-shaped hook of which the two end feet have different lengths to hook a second layer fibrage net, and inserting the long end foot thereof to the fine concrete; and spraying the fine concrete. The method can avoid the generation of interface micro cracks at high stress, effectively prevent interface peeling damages, reinforces building structures reliably, simply, efficiently and environmental protection, and is applicable to reinforcing and repairing various types of structures.

The invention relates to an auxiliary delivery device for an anthracite coal mining and storing bin, in particular to a vertical coal bin tatter prevention hierarchical buffer device which is applied to both underground and above ground. The invention solves the problems of the present coal bin tatter prevention delivery device during the transportation of spiral gradient that the coal is easy to slid out of a chute and fall into the bottom of the bin directly to cause the block charcoal crushing, the spiral chute is uneasy to be reinforced in the limited space of the coal bin and bear the large pressure in the coal bin, and etc. The vertical coal bin tatter prevention hierarchical buffer device includes a fixing stent which is reinforced above the coal bin and a spiral chute. The top end of the spiral chute is fixedly connected with the fixing stent through a fixing axis. The internal bending part of the spiral chute is equipped with a plurality of coal gaps. The outer lateral of the spiral chute is equipped with a plurality of connection earrings which are fixedly connected with and fixing stents through fixing rods. The invention is provided with reasonable structure and is applied to the warehousing storage and transportation of mine block coal. The invention greatly lowers the coal crushing rate and is applied to the anthracite coal mines with high requirement for the block coal rate.

The invention discloses a reinforced concrete column welding ring rib reinforced structure. A reinforced cage is arranged on the side face of the bottom of a to-be-reinforced reinforced concrete column, the height of the reinforced cage is equal to the length of a column bottom plastic hinge area of the to-be-reinforced reinforced concrete column, the reinforced cage comprises more than one vertical longitudinal ribs and more than one welding ring ribs, the vertical longitudinal ribs are located inside the welding ring ribs, the welding ring ribs are fixedly connected with the vertical longitudinal ribs, and a concrete layer covering the reinforced cage is poured on the side face of the bottom of the to-be-reinforced reinforced concrete column. The invention also discloses a construction method of the reinforced concrete column welding ring rib reinforced structure. The reinforced concrete column welding ring rib reinforced structure is used for realizing small construction workload and simple construction process, aiming to the phenomenon that the column end of the reinforced concrete column is damaged in the earthquake, the weak column bottom is reinforced, and part of the reinforced concrete column is reinforced to achieve anti-seismic reinforcement of the whole column.

The invention discloses a chuck type split bolt formwork erecting method. The method comprises the following steps: nuts, clamps shaped like a Chinese character 'shan' and channel steels with rings are prepared, chucks are formed by connection of the nuts, the clamps shaped like the Chinese character 'shan' and the channel steels; screw holes are formed in the side formworks of wallboards; wood beams and formworks are prepared, the channel steels, the wood beams and the formworks are fixed to form a whole through screws; the installed formworks are hung into deformation joint portions through the rings arranged on the channel steels; split screws penetrate from the interior side to exterior side through polyvinyl chloride (PVC) pipes, the split screws penetrate through the screw holes of the chucks, handles of screws are rotated to be screwed with the nuts so as to conduct installing reinforcement; formworks inside the wallboards are reinforced, the concretes are poured after passed inspection; the formworks on the inner side of the wallboards are reinforced, after the concrete is poured and maintained, the handles of the screws are screwed, the formworks are dismounted, the chucks dropped in the process of dismounting are collected, and the dismounted formworks can be used repeatedly. The chuck type split bolt formwork erecting method has the advantages of being convenient to construct and good in reinforcing effect.

The invention discloses a surface strengthening method for a magnesium alloy and belongs to the technical field of processing of metal materials. The method comprises the following steps: annealing a magnesium alloy plate at 200-400 DEG C for 1-3 hours; and carrying out impact deformation treatment on the annealed magnesium alloy plate for 5-30 minutes by using a surface nanocrystallization tester in a vacuum environment or a liquid nitrogen environment under the condition that the frequency is 20-50Hz and 100-200 steel balls are used so as to prepare the magnesium alloy material of which the surface hardness is extremely high, the strength is enhanced and the tensile ductility is excellent. The method disclosed by the invention is simple in preparation process, so that the plate with the strength which is over 2 times that of a plate subjected to annealing firstly and then recrystallization can be obtained. The magnesium alloy material which is excellent in mechanical property has a huge application space in booming industries such as automobiles, rail transit, aerospace, electrocommunication and weaponry.

The invention discloses a non-woven fabric with good air permeability and a preparation process, and aims to provide the non-woven fabric with good air permeability and the preparation process, and the non-woven fabric is good in needling reinforcement and cloth forming effect. The non-woven fabric is formed by superposing multiple layers of fiber webs; a preparation device for the non-woven fabric with good air permeability comprises a base and a top plate; the top plate is arranged above the base; a processing assembly is arranged between the base and the top plate; the lower surface of the top plate is connected with telescopic rods; the processing assembly is provided with two supporting roller shafts; the supporting roller shafts are sleeved with a processing belt capable of rolling; and the telescopic rods are connected with the supporting roller shafts. The invention has the beneficial effects that water discharged from water outlets in the centers of fixed needles can humidify multilayer fibers, so that the fluffy effect of the multilayer fibers is reduced, and the multilayer fibers are easily reinforced to form cloth; movable needles are matched with stop blocks, and the stop blocks can swing through vertical movement of the movable needles, so that water discharge and closing of the water outlets are controlled; the movable needles are connected with springs, so that the puncture effect of the movable needles is stronger, and the reinforcing effect is better; and a heat conducting plate can heat the processed non-woven fabric to obtain the dry non-woven fabric with good air permeability.

Disclosed is a method for preventing the installation curved surface of an organic glass observation window of an airplane from cracking. The organic glass observation window is composed of a hemispherical observation area, a flanging installation area and a curved surface transition area between the observation area and the installation area. Acrylate adhesive polyester filaments are arranged on the inner surface and the outer surface of the curved surface transition area and the inner surface and the outer surface of the installation area respectively so as to reinforce the organic glass observation window.

The invention discloses a construction method of a fabricated slant steel plate mesh cast-in-place concrete shear wall. The construction method includes the steps that step 1, the number of layers of the shear wall is determined; step 2, a single-layer shear wall steel framework is constructed; step 3, a single-layer shear wall is cast in situ; step 4, a multi-layer shear wall steel framework is constructed; and step 5, a multi-layer shear wall is cast in situ. According to different building structures, inclined steel plate meshes are installed in a full-assembly mode to construct the shear wall steel framework, the combination form is variable and flexible, assembly is easy, transportation is light and convenient, universality is high, concrete is cast in place on site, the formed shear wall structure is stable, the construction cost can be effectively saved, and the assembly type characteristic is met; and inclined tensile stress is improved on an inner wall body and an outer wall body of the shear wall, so that crack diseases of the wall bodies are treated and prevented.

The invention discloses a spiral stirrup reinforcement structure of a reinforced concrete column, which relates to the technical field of building structures. A reinforcement cage is arranged on the side of the bottom of the reinforced concrete column to be reinforced, and the height of the reinforcement cage is equal to the plasticity of the bottom of the reinforced concrete column to be reinforced. The length of the hinge area, the reinforcement cage includes a spiral stirrup and more than one vertical longitudinal reinforcement, the vertical longitudinal reinforcement is located inside the spiral stirrup, and the spiral stirrup is fixedly connected with the vertical longitudinal reinforcement, to be reinforced The bottom side of the reinforced concrete column is poured with a concrete layer covering the reinforcement cage. The invention also discloses a construction method of the reinforced concrete column spiral stirrup reinforcing structure. The spiral stirrup reinforcement structure of the reinforced concrete column is used to realize the small construction workload and simple construction process. In view of the phenomenon that the reinforced concrete column ends in the earthquake, the column bottom at the relatively weak point is reinforced, and the reinforced concrete column is partially reinforced. The reinforcement realizes the seismic reinforcement of the whole column.

The invention discloses a construction method of precisely positioning minor distance free face drilling, comprising the following steps of: selecting steel plate or profiled bar as the materials for making die according to the dimension of the aperture of a drill hole, drilling holes on the steel plate or profiled bar according to the aperture; pulling out and marking the center lines of each hole with a measuring apparatus according to requirements of design drawing; precisely positioning a hole die according to the position of the pulled center line of each hole on site so as to ensure the centerline of the positioned hole on the die to be aligned with the centerline of the hole on site, then fixing the holes with steel support feet welded on the hole die and using expansion bolts to fix the holes on a base plane so as to secure the die; mounting a core drill, placing a bit at a corresponding center of hole and drilling, a set of fixture is arranged on the drill pipe to avoid drill pipe swaying during drilling and pressing lightly and rotating slowly when drilling so as to reduce the vibration of the drill. The construction method solves the problem of low drilling rate of holes on free face with minor distance and poor precision of holes drilled and is an economical and practical drilling construction method.